Palo Alto Networks Certified Cybersecurity Entry-level Technician (PCCET)Cybersecurity FundamentalsMedium
A security architect is designing a new system that needs to ensure that when a user submits a critical transaction, like a financial transfer, they cannot later deny having initiated that specific transaction. Which cybersecurity principle is primarily addressed by implementing mechanisms such as digital signatures for this requirement?
- AAvailability
- BIntegrity
- CConfidentiality
- DNon-repudiation
Show answer & explanationAnswer & explanation
Correct answer: D. Non-repudiation
Non-repudiation ensures that a party cannot later deny having performed an action, which is precisely the requirement described for critical financial transactions. Digital signatures are a common mechanism to achieve this.
Why the other options are wrong
- A. Availability ensures access to resources, not accountability for actions.
- B. Integrity ensures data hasn't been tampered with, but doesn't prevent denial of an action itself.
- C. Confidentiality prevents unauthorized disclosure, not denying past actions.
Non-repudiation
A cybersecurity principle that ensures a party cannot deny having performed an action or made a statement, providing irrefutable proof of origin or delivery.
- Prevents denial of participation in a transaction or communication.
- Often achieved through digital signatures or audit trails.
- Crucial for legal and financial transactions.
Memory trick: Don't deny, sign with a digital eye!